Free Delivery on all orders over £99*

MAGfire 24V 5A EN54-4 Certified Fire Alarm PSU

£45399
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The MAGfire 24V 5A is a power supply unit certified to EN54-4 for use in fire detection and alarm systems. It delivers a regulated 27.6V DC output at up to 5A, providing both system power and battery charging for fire alarm control panels, detectors, sounders and auxiliary devices that require a compliant power source.

Designed for commercial, industrial and public building fire alarm installations, the unit mounts inside a white steel enclosure with pre-drilled cable entry points and fixing lugs for wall mounting. The PSU monitors mains supply, output load, battery condition and charger operation, with four dedicated LED indicators on the front panel showing mains status, output fault, battery fault and charger fault conditions.

The EN54-4 certification ensures the unit meets European fire safety standards for power supply equipment in fire detection and alarm systems, a requirement for most commercial fire alarm installations in the UK and EU. The 27.6V DC output voltage accounts for battery float charging at 24V nominal, allowing the PSU to maintain standby batteries at optimal charge while supplying the alarm system. The 5A output rating supports medium-scale fire alarm systems with multiple detector zones and notification appliances.

Specification
Materials Steel
Supply Voltage 93 - 264V AC
Number of Outputs 1
Rated Output 27.6DC @ 5A
Battery Backup Yes
Batteries Required 2 x 12V (up to 7Ah)
Dimensions 275 x 330 x 80mm
Product Net Weight 3.60KG
Product Gross Weight 3.73KG
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What does EN54-4 certification mean?

EN54-4 is the European standard for power supply equipment in fire detection and alarm systems. Certification to this standard is a legal requirement for most commercial fire alarm installations in the UK and EU, ensuring the PSU meets strict reliability, performance and safety criteria for life-safety applications.

Why is the output 27.6V when fire alarm systems are rated at 24V?

The 27.6V DC output voltage provides the correct float charging voltage for 24V standby batteries while simultaneously powering the fire alarm system. This voltage keeps the batteries at optimal charge without overcharging, ensuring they deliver full capacity during a mains power failure.

What do the LED fault indicators show?

The unit has four LED indicators on the front panel: mains status (confirms AC supply present), output fault (detects overload or short circuit on DC output), battery fault (indicates battery disconnection or failure to charge), and charger fault (signals internal charger circuit malfunction). These allow quick diagnosis during installation, commissioning and routine maintenance.

What size fire alarm system does the 5A output support?

A 5A output at 24V nominal provides 120W of total power for the fire alarm system and battery charging. This typically supports medium-scale systems with 10-20 detector zones, multiple notification appliances and auxiliary devices. Larger systems requiring higher current draw need a higher-rated PSU from the MAGfire range.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

See it lit, in person

Lighting looks different in a real room. Come and see our range at our showrooms in Birmingham, Hong Kong and Dubai, or talk to our design team wherever you are.

Niori lighting showroom trailer video with closeups of alabaster lighting

Why Niori

Over 20 years lighting homes worldwide

We are a specialist lighting and mirror retailer with showrooms in Birmingham, Hong Kong and Dubai, shipping to customers around the world. Our own design team is here to help, from first idea to final fitting.

Genuine products

An authorised stockist

Every product arrives brand new with the full manufacturer warranty. Found it cheaper elsewhere? Ask us about a price match.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

Design help

Not sure what you need?

Our design team can help you plan your lighting, share photos and videos of stock, and send samples worldwide. Book a showroom visit in Birmingham, Hong Kong or Dubai, or ask about our lighting design service.

You Might Also Like

Recommended For You

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    Description

    The MAGfire 24V 5A is a power supply unit certified to EN54-4 for use in fire detection and alarm systems. It delivers a regulated 27.6V DC output at up to 5A, providing both system power and battery charging for fire alarm control panels, detectors, sounders and auxiliary devices that require a compliant power source.

    Designed for commercial, industrial and public building fire alarm installations, the unit mounts inside a white steel enclosure with pre-drilled cable entry points and fixing lugs for wall mounting. The PSU monitors mains supply, output load, battery condition and charger operation, with four dedicated LED indicators on the front panel showing mains status, output fault, battery fault and charger fault conditions.

    The EN54-4 certification ensures the unit meets European fire safety standards for power supply equipment in fire detection and alarm systems, a requirement for most commercial fire alarm installations in the UK and EU. The 27.6V DC output voltage accounts for battery float charging at 24V nominal, allowing the PSU to maintain standby batteries at optimal charge while supplying the alarm system. The 5A output rating supports medium-scale fire alarm systems with multiple detector zones and notification appliances.

    Specification
    Materials Steel
    Supply Voltage 93 - 264V AC
    Number of Outputs 1
    Rated Output 27.6DC @ 5A
    Battery Backup Yes
    Batteries Required 2 x 12V (up to 7Ah)
    Dimensions 275 x 330 x 80mm
    Product Net Weight 3.60KG
    Product Gross Weight 3.73KG
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What does EN54-4 certification mean?

    EN54-4 is the European standard for power supply equipment in fire detection and alarm systems. Certification to this standard is a legal requirement for most commercial fire alarm installations in the UK and EU, ensuring the PSU meets strict reliability, performance and safety criteria for life-safety applications.

    Why is the output 27.6V when fire alarm systems are rated at 24V?

    The 27.6V DC output voltage provides the correct float charging voltage for 24V standby batteries while simultaneously powering the fire alarm system. This voltage keeps the batteries at optimal charge without overcharging, ensuring they deliver full capacity during a mains power failure.

    What do the LED fault indicators show?

    The unit has four LED indicators on the front panel: mains status (confirms AC supply present), output fault (detects overload or short circuit on DC output), battery fault (indicates battery disconnection or failure to charge), and charger fault (signals internal charger circuit malfunction). These allow quick diagnosis during installation, commissioning and routine maintenance.

    What size fire alarm system does the 5A output support?

    A 5A output at 24V nominal provides 120W of total power for the fire alarm system and battery charging. This typically supports medium-scale systems with 10-20 detector zones, multiple notification appliances and auxiliary devices. Larger systems requiring higher current draw need a higher-rated PSU from the MAGfire range.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.